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@@ -9,6 +9,7 @@
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#ifndef _ASM_TERMIOS_H
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#define _ASM_TERMIOS_H
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+#include <linux/errno.h>
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#include <asm/termbits.h>
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#include <asm/ioctls.h>
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@@ -94,38 +95,81 @@ struct termio {
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/*
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* Translate a "termio" structure into a "termios". Ugh.
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*/
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-#define user_termio_to_kernel_termios(termios, termio) \
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-({ \
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- unsigned short tmp; \
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- get_user(tmp, &(termio)->c_iflag); \
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- (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
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- get_user(tmp, &(termio)->c_oflag); \
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- (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
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- get_user(tmp, &(termio)->c_cflag); \
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- (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
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- get_user(tmp, &(termio)->c_lflag); \
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- (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
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- get_user((termios)->c_line, &(termio)->c_line); \
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- copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
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-})
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+static inline int user_termio_to_kernel_termios(struct ktermios *termios,
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+ struct termio __user *termio)
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+{
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+ unsigned short iflag, oflag, cflag, lflag;
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+ unsigned int err;
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+
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+ if (!access_ok(VERIFY_READ, termio, sizeof(struct termio)))
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+ return -EFAULT;
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+
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+ err = __get_user(iflag, &termio->c_iflag);
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+ termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag;
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+ err |=__get_user(oflag, &termio->c_oflag);
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+ termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag;
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+ err |=__get_user(cflag, &termio->c_cflag);
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+ termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag;
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+ err |=__get_user(lflag, &termio->c_lflag);
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+ termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag;
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+ err |=__get_user(termios->c_line, &termio->c_line);
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+ if (err)
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+ return -EFAULT;
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+
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+ if (__copy_from_user(termios->c_cc, termio->c_cc, NCC))
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+ return -EFAULT;
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+
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+ return 0;
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+}
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/*
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* Translate a "termios" structure into a "termio". Ugh.
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*/
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-#define kernel_termios_to_user_termio(termio, termios) \
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-({ \
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- put_user((termios)->c_iflag, &(termio)->c_iflag); \
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- put_user((termios)->c_oflag, &(termio)->c_oflag); \
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- put_user((termios)->c_cflag, &(termio)->c_cflag); \
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- put_user((termios)->c_lflag, &(termio)->c_lflag); \
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- put_user((termios)->c_line, &(termio)->c_line); \
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- copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
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-})
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-
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-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
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-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
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-#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
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-#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
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+static inline int kernel_termios_to_user_termio(struct termio __user *termio,
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+ struct ktermios *termios)
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+{
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+ int err;
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+
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+ if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio)))
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+ return -EFAULT;
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+
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+ err = __put_user(termios->c_iflag, &termio->c_iflag);
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+ err |= __put_user(termios->c_oflag, &termio->c_oflag);
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+ err |= __put_user(termios->c_cflag, &termio->c_cflag);
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+ err |= __put_user(termios->c_lflag, &termio->c_lflag);
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+ err |= __put_user(termios->c_line, &termio->c_line);
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+ if (err)
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+ return -EFAULT;
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+
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+ if (__copy_to_user(termio->c_cc, termios->c_cc, NCC))
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+ return -EFAULT;
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+
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+ return 0;
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+}
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+
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+static inline int user_termios_to_kernel_termios(struct ktermios __user *k,
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+ struct termios2 *u)
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+{
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+ return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0;
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+}
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+
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+static inline int kernel_termios_to_user_termios(struct termios2 __user *u,
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+ struct ktermios *k)
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+{
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+ return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0;
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+}
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+
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+static inline int user_termios_to_kernel_termios_1(struct ktermios *k,
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+ struct termios __user *u)
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+{
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+ return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0;
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+}
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+
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+static inline int kernel_termios_to_user_termios_1(struct termios __user *u,
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+ struct ktermios *k)
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+{
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+ return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0;
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+}
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#endif /* defined(__KERNEL__) */
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